oracle数据库的相关内容

文章 2021-12-14 来自：开发者社区

Oracle 数据库表空间不足拓展方法实例演示，表空间剩余大小查看，通过新增表空间文件拓展表空间，表空间文件路径查看

Oracle 数据库表空间第一章：表空间的拓展① 查看剩余表空间大小② 查看表空间文件路径③ 通过新增表空间文件拓展表空间④ 查看表空间已分配大小第一章：表空间的拓展① 查看剩余表空间大小查询剩余表空间(单位：M)，小于1M将不显示。select tablespace_name, sum(bytes) / 1024 / 1024 from dba_free_spac.....

文章 2021-12-14 来自：开发者社区

PL/SQL 工具远程连接Oracle数据库方法，plsql免安装oracle客户端直接配置oci实战演示

PL/SQL 工具远程连接 Oracle 数据库第一章：PL/SQL 工具配置① oci 下载② oci 配置③ PL/SQL 工具配置④ PL/SQL 远程连接 Oracle 数据库演示⑤ 连接失败配置环境变量解决问题PL/SQL 工具的安装可以看我的这个文章：PL/SQL 数据库连接工具的下载、安装与使用，PL/SQL 工具的激活第一章：PL/SQL 工具配置① oci 下载使....

文章 2021-12-14 来自：开发者社区

Oracle 数据库用户锁定与解锁，用户锁定最大密码失败次数设置方法，ORA-28000: the account is locked问题解决方法

用户多次密码输入错误达到一定值就会被锁定。-- 用户锁定方法 alter user 数据库名 account lock; -- 用户解锁方法 alter user 数据库名 account unlock;当锁定时连接数据库就会报如下错误。An error occurred while establishing the connection: Long Message: ORA-28000: th....

文章 2021-12-14 来自：开发者社区

SQL语句查询出的数据进行字符串拼接，oracle批量删除数据库用户实例演示

           通过 dba_users 表可以查询出所有的数据库用户，我下面筛选了所有 HR 开头的数据库用户，要把他们都删掉。select username from dba_users where username like 'HR%' order by created asc;|| 符号可以连接字符串还有查出来的数据，删.....

文章 2021-12-14 来自：开发者社区

oracle数据库imp导入失败提示：“不是有效的导出文件, 标头验证失败”解决方法，修改dmp文件里oracle数据库版本号方法

报错信息如下，该报错主要是因为原来导出时的数据库版本和现有的数据库版本不匹配所致。C:\Users\Administrator>imp ncc2005zdh_0602/ufida file=D:\zdh_dmp\auto_preset_dat a.dmp fromuser=ancc_auto_0513 touser=ncc2005zdh_0602 ....

文章 2021-12-14 来自：开发者社区

oracle数据库查询open_cursors值的sql语句，达梦数据库查询MAX_SESSION_STATEMENT值方法，MAX_SESSION_STATEMENT的最大值、上限是多少

windows 下需要用 cmd 登录 oracle 数据库，用 show parameter open_cursors 来查询。可以看到 open_cursors 的值为 2000。SQL> show parameter open_cursors; NAME TYPE ---------------------------...

文章 2021-12-14 来自：开发者社区

windows、linux下命令行登录oracle数据库方法，查询sga参数值sql语句

文章 2021-12-14 来自：开发者社区

oracle数据库impdp导入dmp文件功能演示，imp导入IMP-00038: Could not convert to environment character sets handle问题解决

取了个 dmp 文件，导入报错了，原因是 dmp 文件是通过 expdp 方法导出的，只能通过 impdp 方法导入才行。C:\Users\Administrator>imp ncc_qt/1@orcl file=f:\ncc0303.dmp报错信息如下：IMP-00038: Could not convert to environment cha....

文章 2021-12-14 来自：开发者社区

oracle数据库exp命令导入导出dmp文件演示，oracle数据库备份还原功能

导出全数据库。注：windows 下需要 @database，linux 下不需要 @database，这里的 database 指的是 orcl 。exp ncc_auto_0520/1@orcl file=F:\oracle\ncc_auto_0520.dmp full=y导出 ncc_auto_0520 这个 schema 表。exp ncc_auto_0520....

文章 2021-12-14 来自：开发者社区

linux服务器oracle数据库导出dmp文件功能演示，备份数据库命令。exp命令显示command not found解决方法，EXP-00028: 无法打开dmp进行写入问题解决

默认需要切 oracle 用户才可以用，命令su - oracle。直接用 exp 命令会显示 command not foundnctest205:~ # exp ncc_auto_0513/1@orcl file=/data/oracle/ncc_auto_0513.dmp owner=ncc_auto_0513 -bash: exp: comma....

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数据库审计

满足等保2.0二级和三级 “安全审计”合规要求的同时，智能解析数据库通信流量，细粒度审计数据库访问行为，通过对数据库全量行为的审计溯源、危险攻击的实时告警、风险语句的智能预警，提供数据库资产最安全的监控保障。

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